Corner bead



' June 1 1926.

- 1,587,034 F. E. PLANETT CORNER BEAD Filed Jan. 12, 1925 i INVENTOR.

' ATTORNEY Patented June 1, 1926.

UNITED STATES PATENT QFFECEQ FRED E. PLANET'I, OF OAKLAND, CALIFORNIA, ASSIGNOR 'IO PLANE'IT MFG. 00., O1

OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

CORNER BEAD.

Application filed January This invention relates to improvements in corner beads for plaster gauging and reinforcement at the corner edges, and primarily to means in connection with such beads for preventing and stopping an excessive flow of plaster or the like past the corner or down the wall faceat the corner.

' Present corner beads permit the plaster to flow past the corner to the other face of the wall, hence when additional plaster is applied to the said other face at the said corner the first-mentioned plaster is bulged out of the plane of the finished surface, and which bulging necessitates retrimming thereat and often again atthe other corner surface also. The elimination of this objectionable and more or less constant occurrence is the primary object of my invention.

Another important object of the invention is the provision of an improved corner bead adapted for attachment to the corners of any construction, and having in combination with the bead member of the device,

an element adapted for interposition between the said bead member and the corner of the structure to partially close the gap thereat, and to act as a stop for the plaster tending to flow through the gap as the plaster is applied to the Wall and darbied to the proper thickness as determined by the outstanding bead member of my corner bead and other furring devices on the wall surface within reach of the span of the darby.

Another important object is that the plaster stop member of my device shall be of such formation so as to allow some plaster to pass therethrough uniformly the whole length thereof, to form a bonding surface for the plaster applied to the other side of the corner. Thus, it will be noted that there is no parting of the plaster at the finished corner, but there does result a con tinuation of the plaster around the corner, hence the said plaster stop member serves as an ideal reinforcement at the said corner. An object resulting from this reinforcement is that a minimum diameter of bead rod can be employed in combination with the plaster stop member, a

A further ob'ect is to provide a bead construction involving the plaster stop element, that can be easily bent around a curved or arched corner structure.

The invention possesses other advantage ous features, some of which, with the fore- 12, 1925. Serial No. 1,841.

full that form of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. In said drawings I have shown one form of my invention, but it is to be understood that I do not limit myself to such form, since the invention, as expressed in the claims may be embodied in a plurality of forms.

Referring to said drawings:

Figure 1 is a sectional plan through a plastered wall corner embodying my invention, and talren at the top surface of one of the spacer members of the invention; and

Fig. 2 is an elevation of part of the corner bead only, showing clearly the plaster retardant element.

The numeral 3 in Fig. 1 represents a supporting corner member, and to which, in this case, the customary laths 4 and 5 are secured in the usual way. i

The lathed corner has my improved corner bead applied thereto, and which consists of a longitudinal member 6 preferably of a suitable rod of flexible wire having secured thereto at intervals, as by spot-weld ing 7 for example spacers 8 formed preferably of suitable flat wire.

The spacers are constructed with arms 9 and 10 to conveniently embrace the surfaces at a corner, and to which they may be secured by any suitable means such as nails ll. The spacers are formed U-shaped at the angle thereof for a purpose to be presently set forth, and the depth of the U-seotion is such so as to outstand the bead member 6 a predetermined distance from the corner and wall. The distance determines the thickness of the plaster 12 and is generally governed by local official building laws.

The spacers are attached to the bead member in alignment and at right angles thereto for wood construction, and the arms are preferably positioned diagonally a little for concrete construction in order in prevent chipping of the latter when secured thereto.

To the bead member 6 is longitudinally positioned and attached at intervals thereto, as by spot welding 13, a plaster stop and reinforcing element 14-. The said element is preferably a coil of wire of such diameter so as to snugly bed in the previously mentioned U-shaped section of the spacers 8a lhe plaster stop element is also preferably helical in form, with a suitable pitch between the coils thereof to offer suflicient resistance to the applied plaster so as to prevent excessive plaster passing therethrough for reasons already mentioned.

The dot-and-dash line 15 of Fig. 2 indicates the corner edge formed by the lathe l and 5, but it is to-beborne in mind that such a perfect corner as shown in Fig. 1 is 'arely attained in practice, hence, the gap between the bead rod 6 and the corner 15 is usually much Wider and of course irregular, and therefore the need of a closure such 1 provide is the more apparent. V

I am aware of other corner beads on the market designed for the art of plastering, so do not broadly claim such heads, but What I do desire patent protection on, is a corner bead construction that has a barrier to prevent plaster in its application to a wall from flowing or oozing too fast past the Wall corner to the other face of the Wall, and the elen'ient forming the barrier being of such a Cl'ltrl'tlC'fQl so as not to form a cleavage surface at the bisecting line of the angle at the corner, but to form an irregular and substantially continuous surface the full length of the applied corner bead for bonding purposes.

I claim:

1. A corner bead comprising a rod; a helical element secured longitudinally to the rod; and spacers secured at intervals to the rod and embracing the helical element therein, said spacers being adapted to embrace the surfaces at a corner of a Wall for attaching the bead thereto, as, and for the purpose, set forth.

A corner bead comprising a rod; a coiled Wire element secured longitudinally to the rod; and spacers secured to the rod iet'ween the rod and the Wire element and adapted to embrace the surfaces at a corner of a Wall for attaching the bead thereto, as, and for the purpose, set forth.

3. A corner bead comprising a rod; a coiled Wire element secured longitudinally tothe rod; and spacers secured to the rod and adapted to embrace a corner of a Wall.

for attaching the bead thereto, as, and for the purpose, set forth.

a. A corner bead comprising a beadmember adapted to be attached to a Wall at a corner thereof; and a coiled Wire element secured longitudinally to the bead member, as, and for the purpose, set forth.

5. A corner-bead structure comprising a flexible bead member; a flexible plasterstop element coi'nprisin'g-a coiled Wire secured longitudinally to the bead member; and spacers secured at intervals to the bead memher for attaching the structure to a Wall, the structure being adapted to be bent for attachment at an arched corner of the Wall, as, and for the purpose, set forth.

In testimony whereof I aflix my signature.

FRED E. PLANETT. 

